https://khyzhun.medium.com/kotlin-%D0%BE%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D0%BE%D1%80-when-%D0%BE%D1%81%D0%BD%D0%BE%D0%B2%D0%B8-%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D1%83%D0%B2%D0%B0%D0%BD%D0%BD%D1%8F-4deff858dddf
